mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 11:51:27 +00:00
bb50564258
There is no need to init .owner field. Based on the patch from Peter Griffin <peter.griffin@linaro.org> "mmc: remove .owner field for drivers using module_platform_driver" This patch removes the superflous .owner field for drivers which use the module_platform_driver API, as this is overriden in platform_driver_register anyway." Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com> Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
131 lines
3.2 KiB
C
131 lines
3.2 KiB
C
/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
struct dwc3_qcom {
|
|
struct device *dev;
|
|
|
|
struct clk *core_clk;
|
|
struct clk *iface_clk;
|
|
struct clk *sleep_clk;
|
|
};
|
|
|
|
static int dwc3_qcom_probe(struct platform_device *pdev)
|
|
{
|
|
struct device_node *node = pdev->dev.of_node;
|
|
struct dwc3_qcom *qdwc;
|
|
int ret;
|
|
|
|
qdwc = devm_kzalloc(&pdev->dev, sizeof(*qdwc), GFP_KERNEL);
|
|
if (!qdwc)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(pdev, qdwc);
|
|
|
|
qdwc->dev = &pdev->dev;
|
|
|
|
qdwc->core_clk = devm_clk_get(qdwc->dev, "core");
|
|
if (IS_ERR(qdwc->core_clk)) {
|
|
dev_err(qdwc->dev, "failed to get core clock\n");
|
|
return PTR_ERR(qdwc->core_clk);
|
|
}
|
|
|
|
qdwc->iface_clk = devm_clk_get(qdwc->dev, "iface");
|
|
if (IS_ERR(qdwc->iface_clk)) {
|
|
dev_dbg(qdwc->dev, "failed to get optional iface clock\n");
|
|
qdwc->iface_clk = NULL;
|
|
}
|
|
|
|
qdwc->sleep_clk = devm_clk_get(qdwc->dev, "sleep");
|
|
if (IS_ERR(qdwc->sleep_clk)) {
|
|
dev_dbg(qdwc->dev, "failed to get optional sleep clock\n");
|
|
qdwc->sleep_clk = NULL;
|
|
}
|
|
|
|
ret = clk_prepare_enable(qdwc->core_clk);
|
|
if (ret) {
|
|
dev_err(qdwc->dev, "failed to enable core clock\n");
|
|
goto err_core;
|
|
}
|
|
|
|
ret = clk_prepare_enable(qdwc->iface_clk);
|
|
if (ret) {
|
|
dev_err(qdwc->dev, "failed to enable optional iface clock\n");
|
|
goto err_iface;
|
|
}
|
|
|
|
ret = clk_prepare_enable(qdwc->sleep_clk);
|
|
if (ret) {
|
|
dev_err(qdwc->dev, "failed to enable optional sleep clock\n");
|
|
goto err_sleep;
|
|
}
|
|
|
|
ret = of_platform_populate(node, NULL, NULL, qdwc->dev);
|
|
if (ret) {
|
|
dev_err(qdwc->dev, "failed to register core - %d\n", ret);
|
|
goto err_clks;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_clks:
|
|
clk_disable_unprepare(qdwc->sleep_clk);
|
|
err_sleep:
|
|
clk_disable_unprepare(qdwc->iface_clk);
|
|
err_iface:
|
|
clk_disable_unprepare(qdwc->core_clk);
|
|
err_core:
|
|
return ret;
|
|
}
|
|
|
|
static int dwc3_qcom_remove(struct platform_device *pdev)
|
|
{
|
|
struct dwc3_qcom *qdwc = platform_get_drvdata(pdev);
|
|
|
|
of_platform_depopulate(&pdev->dev);
|
|
|
|
clk_disable_unprepare(qdwc->sleep_clk);
|
|
clk_disable_unprepare(qdwc->iface_clk);
|
|
clk_disable_unprepare(qdwc->core_clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id of_dwc3_match[] = {
|
|
{ .compatible = "qcom,dwc3" },
|
|
{ /* Sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, of_dwc3_match);
|
|
|
|
static struct platform_driver dwc3_qcom_driver = {
|
|
.probe = dwc3_qcom_probe,
|
|
.remove = dwc3_qcom_remove,
|
|
.driver = {
|
|
.name = "qcom-dwc3",
|
|
.of_match_table = of_dwc3_match,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(dwc3_qcom_driver);
|
|
|
|
MODULE_ALIAS("platform:qcom-dwc3");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("DesignWare USB3 QCOM Glue Layer");
|
|
MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>");
|